CVE-2023-50677
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedAn issue in NETGEAR-DGND4000 v.1.1.00.15_1.00.15 allows a remote attacker to escalate privileges via the next_file parameter to the /setup.cgi component.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · moderate confidenceA privilege escalation vulnerability exists in NETGEAR DGND4000 router firmware version 1.1.00.15_1.00.15. The vulnerability is located in the /setup.cgi component where the next_file parameter can be manipulated by a remote attacker to gain elevated privileges on the device.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data= 1.1.00.15CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Adjacent
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Confirm router model is DGND4000Log into the router web interface and check the device information page, or check the physical device label for the model number DGND4000Affected if The device is NOT a Netgear DGND4000 router - this CVE only applies to that specific model
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Check installed firmware versionLog into the router web interface and navigate to Administration > Firmware Upgrade or Router Status to view the current firmware version. Compare against 1.1.00.15Affected if The firmware version is exactly 1.1.00.15 - only that specific version is listed as affected
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Verify web management interface accessibilityAttempt to access http://[router-IP]/setup.cgi or check if port 80/443 is open on the router's WAN IP addressAffected if The /setup.cgi endpoint is publicly accessible over the internet - this is required for the remote attack vector
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Check remote administration statusIn the router web interface, go to Administration > Remote Management and verify if remote access is enabledAffected if Remote administration is enabled and the web interface is exposed externally - this allows the remote attacker to reach the vulnerable component
You are affected only if you have a DGND4000 router running firmware version 1.1.00.15 with the web interface (specifically /setup.cgi) accessible to remote attackers.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataApply NETGEAR firmware update if available; otherwise restrict access to the router's web management interface via firewall rules or disable remote administration.
- Consultation2.0 h
- Implementation2.0 h
- Testing2.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,984.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-50677 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2023-50677 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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